WO2020000774A1 - Dispositif de commutation optique - Google Patents

Dispositif de commutation optique Download PDF

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Publication number
WO2020000774A1
WO2020000774A1 PCT/CN2018/110047 CN2018110047W WO2020000774A1 WO 2020000774 A1 WO2020000774 A1 WO 2020000774A1 CN 2018110047 W CN2018110047 W CN 2018110047W WO 2020000774 A1 WO2020000774 A1 WO 2020000774A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
optical fiber
array
switch device
lens group
Prior art date
Application number
PCT/CN2018/110047
Other languages
English (en)
Chinese (zh)
Inventor
绪海波
Original Assignee
昂纳信息技术（深圳）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 昂纳信息技术（深圳）有限公司 filed Critical 昂纳信息技术（深圳）有限公司
Publication of WO2020000774A1 publication Critical patent/WO2020000774A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
    • G02B6/3512—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being reflective, e.g. mirror
    • G02B6/3518—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being reflective, e.g. mirror the reflective optical element being an intrinsic part of a MEMS device, i.e. fabricated together with the MEMS device
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
    • G02B6/3544—2D constellations, i.e. with switching elements and switched beams located in a plane
    • G02B6/3546—NxM switch, i.e. a regular array of switches elements of matrix type constellation

Definitions

  • the invention relates to the field of optical devices, in particular to an optical switching device.
  • An optical switch is an optical device with one or more optional transmission ports, and its role is to perform physical switching or logical operations on optical signals in an optical transmission line or integrated optical path.
  • optical switches based on NxN are generally manufactured by mechanical principles, or cascaded design by 1xN optical switches.
  • the technical problem to be solved by the present invention is to provide an optical switch device in response to the foregoing defects of the prior art, and solve the problems of high cost and large size of the existing optical switch device.
  • the technical solution adopted by the present invention to solve its technical problem is to provide an optical switch device including an optical fiber array, an optical lens group, and a DMD chip.
  • the optical fiber array includes multiple optical fiber input ends and multiple optical fiber output ends.
  • the DMD chip includes a plurality of specific reflection areas arranged in an array; wherein a plurality of the optical fiber input ends output a light beam and enters the corresponding specific reflection area through the optical lens group to cause light reflection, and is then coupled to the corresponding through the optical lens group. Fiber output.
  • the optical lens group includes a converging lens, a plurality of the optical fiber input ends output a light beam and pass through the converging lens to form a plurality of first converging positions, and a specific reflection area of the DMD chip and the first Convergence position is set accordingly.
  • the reflection lens of the specific reflection area adjusts the reflection direction by the rotation mechanism of the DMD chip, and a plurality of light beams reflected by the specific reflection area pass through the converging lens to form a plurality of second converging positions.
  • the optical fiber output end is set corresponding to the second convergence position.
  • the optical lens group includes a plurality of converging lenses arranged in an array, and the converging lenses are respectively aligned with the optical fiber input end and the optical fiber output end of the optical fiber array.
  • the optical lens group further includes collimating lenses arranged in an array, the collimating lenses are arranged between the converging lens and the optical fiber array, and the collimating lenses are respectively connected to the optical fiber input of the optical fiber array. End and fiber output end are aligned.
  • the fiber array is arranged in an N * N array
  • the collimating lens is also arranged in an N * N array.
  • the optical lens group further includes a substrate, and the substrate is provided with a plurality of through holes arranged in an array and corresponding to the position of the collimating lens, and the collimating lens is embedded in the substrate. Through hole.
  • the optical fiber array includes a plurality of optical fiber interfaces arranged in an array, and each of the optical fiber interfaces serves as an optical fiber input end and / or an optical fiber output end, and is connected to an external optical fiber.
  • the optical fiber interface is a dual-fiber pigtail, and each dual-fiber pigtail is connected to an input fiber and an output fiber respectively.
  • the optical lens group includes collimating lenses arranged in an array, and the collimating lenses are respectively aligned with at least one double fiber pigtail.
  • the beneficial effect of the present invention is that, compared with the prior art, the present invention realizes the NxN design of the optical switch by designing an optical switch device and using the DMD chip to form a compact structure, which does not require additional design of a reflective structure, and reduces design and production costs. And improve the practicality of the optical switch device.
  • FIG. 1 is a schematic structural diagram of an optical switching device according to the present invention.
  • FIG. 2 is a schematic structural diagram of a DMD chip according to the present invention.
  • FIG. 3 is a schematic structural diagram of a condensing lens according to the present invention.
  • FIG. 4 is a schematic structural diagram of an optical lens group according to the present invention.
  • the present invention provides a preferred embodiment of an optical switching device.
  • An optical switch device includes an optical fiber array 110, an optical lens group 120, and a DMD chip 130.
  • the optical fiber array 110 includes a plurality of optical fiber input terminals and a plurality of optical fiber output terminals.
  • the DMD chip 130 includes a plurality of arrays. Reflection area 131; wherein a plurality of optical fiber input ends output light beams and enter the corresponding specific reflection area 131 through the optical lens group 120 to generate light reflection, and are then coupled to the corresponding optical fiber output ends through the optical lens group 120 .
  • the optical fiber array 110 includes a plurality of optical fibers 111 arranged in an array, and a plurality of optical fiber incident light beams, and passes through the optical lens group 120, such as collimation, convergence, filtering, etc., and is incident on a specific DMD chip 130.
  • the reflection area 131 and by adjusting the parameters or types of the optical lens group 120, it is preferable that different incident light beams can be incident on the specific reflection area 131 on the set DMD chip 130, that is, the DMD chip 130 is used to control the specific reflection area
  • the 131 mirror can complete the light selection of the optical switch device or the optical switch.
  • an optical fiber input end when an optical fiber input end outputs a light beam, it enters the first specific reflection area 131 of the DMD chip 130 after passing through the optical lens group 120, and is coupled to the corresponding optical fiber output end through the first specific reflection area 131.
  • Two kinds of control can be realized. First, the reflection direction of the mirror of the first specific reflection area 131 of the DMD chip 130 can be controlled, and the light beam coupled to the output end of the optical fiber can be reflected to other places to close the optical path, or reflected to other optical output ends. , To achieve the light path conversion, and secondly, the first specific reflection area 131 of the DMD chip 130 can be controlled to prevent the mirror from reflecting, so that the light path is closed.
  • the present invention provides a preferred embodiment of a condensing lens.
  • the optical lens group 120 includes a converging lens 121, a plurality of the optical fiber input ends output light beams and pass through the converging lens 121 to form a plurality of first converging positions, and the specific reflection area 131 and the first converging position of the DMD chip 130. Corresponding setting.
  • a plurality of the optical fiber input ends output light beams and pass through a converging lens 121 to form a plurality of first converging positions, and the first converging positions form an array arrangement to facilitate control of the DMD chip 130.
  • the beams converged by the convergent lenses 121 of the adjacent optical fiber input ends are concentrated in the same specific reflection area 131, and the above can be achieved by adjusting the convergent lenses 121.
  • the optical lens group 120 includes a plurality of converging lenses 121 arranged in an array, and the converging lenses 121 are respectively aligned with the optical fiber input end and the optical fiber output end of the optical fiber array 110, and are in line with only one condensing lens 121.
  • the effect of adjusting the optical path is the best, and the light beam passing through the focusing lens 121 can be accurately incident into the corresponding first focusing position.
  • the reflection lens of the specific reflection area 131 adjusts the reflection direction through the rotation mechanism of the DMD chip 130, and the light beams reflected by the plurality of specific reflection areas 131 pass through the converging lens 121 to form a plurality of second converging positions.
  • the output end is set corresponding to the second convergence position.
  • the mirror of each specific reflection area 131 of the DMD chip 130 has only two adjustment angles, the first adjustment angle is reflected to the corresponding fiber output end, and the second adjustment The angle is reflected to other places to realize the opening and closing of the light path.
  • the mirror of each specific reflection area 131 of the DMD chip 130 is provided with at least two adjustment angles, the first adjustment angle is reflected to the first fiber output end, and the second adjustment The angle is reflected to the output end of the second optical fiber, and there are other adjustment angles that are reflected to the other optical fiber output end to realize the optical path conversion.
  • the mirror of each specific reflection area 131 of the DMD chip 130 is provided with at least three adjustment angles.
  • the first adjustment angle is reflected to the first optical fiber output end
  • the second The adjustment angle is reflected to the second fiber output end
  • the third adjustment angle is reflected to the blank position to close the optical path
  • other adjustment angles are reflected to other optical fiber output ends to realize optical path conversion.
  • the present invention provides a preferred embodiment of a condensing lens.
  • the optical lens group 120 further includes collimating lenses 122 arranged in an array.
  • the collimating lenses 122 are disposed between the converging lens 121 and the optical fiber array 110.
  • the collimating lenses 122 are respectively connected to the optical fibers of the optical fiber array 110. End and fiber output end are aligned.
  • the optical fiber array 110 is provided in an N * N array
  • the collimating lens 122 is also provided in an N * N array.
  • the optical lens group 120 includes collimating lenses 122 arranged in an array, and the collimating lenses 122 are respectively aligned with at least one double fiber pigtail.
  • the optical lens group 120 further includes a substrate.
  • the substrate is provided with a plurality of through-holes arranged in an array and corresponding to the position of the collimating lens 122.
  • the collimating lens 122 is embedded in the substrate. In the hole.
  • the optical fiber array 110 includes a plurality of optical fiber interfaces arranged in an array, and each of the optical fiber interfaces serves as an optical fiber input end and / or an optical fiber output end, and is connected to an external optical fiber.
  • the optical fiber interface is a double-fiber pigtail, and each double-fiber pigtail is connected to an input fiber and an output fiber, respectively.
  • the optical path of each double-fiber pigtail is turned on or off through the DMD chip 130, that is, the optical fiber input end of each double-fiber pigtail inputs the light beam into the optical switch device, and converges in the corresponding specific reflection area 131 of the DMD chip 130
  • the specific reflection area 131 is turned on under control, the light beam is coupled to the optical fiber output end of the corresponding double-fiber pigtail.
  • the specific reflection area 131 is turned off under control, all The beam is reflected to a blank position.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

La présente invention concerne un dispositif de commutation optique, comprenant un réseau de fibres optiques (110), un groupe de lentilles optiques (120) et une puce DMD (130). Le réseau de fibres optiques comprend une pluralité d'entrées de fibre optique et une pluralité de sorties de fibre optique, et la puce DMD comprend une pluralité de régions de réflexion spécifiques (131) disposées en réseau ; et chacun des faisceaux lumineux émis à partir de la pluralité d'entrées de fibre optique est incident, à travers le groupe de lentilles optiques, sur la région de réflexion spécifique correspondante pour la réflexion de la lumière, puis couplé à la sortie de fibre optique correspondante par l'intermédiaire du groupe de lentilles optiques. Le dispositif de commutation optique utilise une puce DMD pour former une structure compacte et réalise une conception N*N d'un commutateur optique sans la conception supplémentaire d'une structure réfléchissante, réduisant les coûts de conception et de production, améliorant le caractère pratique du dispositif de commutation optique.
PCT/CN2018/110047 2018-06-29 2018-10-12 Dispositif de commutation optique WO2020000774A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810714493.3A CN108717232A (zh) 2018-06-29 2018-06-29 一种光开关装置
CN201810714493.3 2018-06-29

Publications (1)

Publication Number Publication Date
WO2020000774A1 true WO2020000774A1 (fr) 2020-01-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/110047 WO2020000774A1 (fr) 2018-06-29 2018-10-12 Dispositif de commutation optique

Country Status (2)

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CN (1) CN108717232A (fr)
WO (1) WO2020000774A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114089487A (zh) * 2021-09-30 2022-02-25 哈尔滨新光光电科技股份有限公司 一种基于dmd的激光三维成像模拟器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104345394A (zh) * 2013-07-25 2015-02-11 华为技术有限公司 光开关和光开关阵列
US20150293308A1 (en) * 2012-11-01 2015-10-15 The Arizona Board Of Regents On Behalf Of The University Of Arizona Reconfigurable diffractive optical switch
CN105008993A (zh) * 2012-12-07 2015-10-28 日本电信电话株式会社 光输入输出装置
CN105891965A (zh) * 2016-05-10 2016-08-24 许德蛟 大容量光纤开关装置及程控交换方法
CN106772822A (zh) * 2017-01-20 2017-05-31 深圳大学 一种高速光开关器件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150293308A1 (en) * 2012-11-01 2015-10-15 The Arizona Board Of Regents On Behalf Of The University Of Arizona Reconfigurable diffractive optical switch
CN105008993A (zh) * 2012-12-07 2015-10-28 日本电信电话株式会社 光输入输出装置
CN104345394A (zh) * 2013-07-25 2015-02-11 华为技术有限公司 光开关和光开关阵列
CN105891965A (zh) * 2016-05-10 2016-08-24 许德蛟 大容量光纤开关装置及程控交换方法
CN106772822A (zh) * 2017-01-20 2017-05-31 深圳大学 一种高速光开关器件

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Publication number Publication date
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